Nassau County Property Search

Search free Nassau County NY property, land, and tax records through local government assessors, auditors, clerks, property appraisers, deeds recorders, treasurers, tax collectors, city halls, and town halls.


The Nassau County Assessor is responsible for determining the value of property in order to determine Nassau County property taxes. The Nassau County Assessment Office collect data from on-site inspections, value assessments for construction or improvements, comparable sales, and calculations of depreciation. The Nassau County Tax Assessor maintains current data on every parcel in the Nassau County, which includes ownership information, maps of property lines, inventories of parcels and structures, and the value of all the property in the Nassau County, NY. The Nassau County Assessor’s Office can answer questions regarding Nassau County property tax appeals and assessments, Nassau County property tax rates and payment due dates.

Freeport Assessor Freeport NY 46 North Ocean Avenue 11520 516-377-2256

Nassau County Assessor's Office Mineola NY 240 Old Country Road 11501 516-571-1500


The Nassau County Clerk files important documents and preserves municipal records in order to maintain an archive of Nassau County property records that can be accessed by the public. The Clerk's Office is a valuable source of information on property in Nassau County, New York. The Nassau County Clerk's Office contains documentation on real estate excise taxes, registered land, and property transactions, as well as land documents including Nassau County deeds, mortgages, and liens on properties.

Brookville Clerk East Norwich NY 104 Susan Cove 11732 516-922-8198

East Rockaway Clerk East Rockaway NY 376 Atlantic Avenue 11518 516-887-6312

Glen Cove Clerk Glen Cove NY 9 Glen Street 11542 516-676-2000

Hempstead Town Clerk Hempstead NY 1 Washington Street 11550 516-489-5000

Kensington Village Clerk Great Neck NY 2 Nassau Drive 11021 516-482-4409

Malverne Clerk Malverne NY 99 Church Street 11565 516-599-0722

Matinecock Village Clerk Locust Valley NY 63 Midway Avenue 11560 516-671-7790

Nassau County Clerk Mineola NY 1550 Franklin Avenue 11501 516-571-4010

Nassau County Clerk Westbury NY 1200 Old Country Road 11590 516-493-3900

New Hyde Park Clerk New Hyde Park NY 1420 Jericho Turnpike 11040 516-354-0022

North Hempstead Town Clerk Manhasset NY 200 Plandome Road 11030 516-869-7650

North Hills Clerk Roslyn NY 1 Shelter Rock Road 11576 516-365-8857

Old Westbury Village Clerk Old Westbury NY 1 Store Hill Road 11568 516-626-0800

Oyster Bay Town Clerk Oyster Bay NY 54 Audrey Avenue 11771 516-624-6320

Oyster Bay Town Clerk Massapequa NY 977 Hicksville Road 11758 516-797-7960

Plandome Village Clerk Manhasset NY 65 South Drive 11030 516-627-1748

Valley Stream Clerk Valley Stream NY 123 South Central Avenue 11580 516-825-4200

Westbury Village Clerk Westbury NY 235 Lincoln Place 11590 516-334-1700


The Nassau County Recorders of Deeds maintain public records, particularly documents related to property and land records, and make them available for public access in Nassau County, NY. The Office of Recorder of Deeds in Nassau County is a valuable source of information on property records The Recorder of Deeds maintains documents on land transactions within its jurisdictions, including Nassau County deeds and titles, mortgages, property ownership records, surveys, and easements, as well as tax liens.

Nassau County Recorder of Deeds Mineola NY 240 Old Country Road 11501 516-571-1444


Nassau County Town Halls and City Hall are the chief administrative offices that runs the town or city. The Town Hall or City Hall often maintains records related to the locality, including Nassau County property taxes, property value assessments, and land transactions, as well as property sales and transfers in Nassau County, New York.

Glen Cove City Hall Glen Cove NY 9 Glen Street 11542 516-676-2000

Hempstead Town Hall Hempstead NY 350 Front Street 11550 516-489-5000

Levittown Town Hall Hicksville NY 201 Levittown Parkway 11801 516-933-6400

Long Beach City Hall Long Beach NY 1 West Chester Street 11561 516-431-1000

North Hempstead Town Hall Manhasset NY 220 Plandome Road 11030 516-869-6311

Oyster Bay Town Hall Oyster Bay NY 74 Audrey Avenue 11771 516-624-6333

Oyster Bay Town Hall Massapequa NY 977 Hicksville Road 11758 516-797-7900


The Nassau County Treasurer and Tax Collector’s Office is responsible for the collection of Nassau County property tax revenue. The Treasurer and Tax Collector maintains current Nassau County property tax information including Nassau County property ownership information, GIS Maps, tax maps, historical property tax rates, lists of sold parcels, and is also charged with the sale of properties due to a default on taxes in Nassau County, New York.

Brookville Village Treasurer Glen Head NY 18 Horse Hill Road 11545 516-626-1792

Freeport Treasurer Freeport NY 46 North Ocean Avenue 11520 516-377-2261

Hempstead Village Treasurer Hempstead NY 99 Nichols Court 11550 516-489-3400

Nassau County Treasurer's Office Mineola NY 1 West Street 11501 516-571-2090